Acetylene-gas generator.



G. M. ELLIS.

ACETYLENE GAS GENERATOR.

APPLICATION FILED MAR- a, 1914.

w m. 5 ML 1 m mm a r5 Mm THE NORRIS PETERS 50., PHOTO-LITHOQIWASHINGIDN. D C

G. M. ELLIS.

ACETYLENE GAS GENERATOR.

APPLICATION FILED MAR-31 1914.

1,1 35,002. Patented Apr. 13, 1915. 759 8 2 SHEETS-SHEET 2.

THE NORRIS PETERS C0.. PHOTO'LITHQ. WASHINCTUN. D. C.

GE'VORGE M. Ennis/F ARTHUR, IOWA. Y

7 To all whom it may concern Be it known that L Gnoncn-M'. ELLIS,

citizen of the United State's, residing at Arthur, in the county of Ida and State of Iowa, have invented certain new and. useful Improvements in Acetylene-Gas Generatorsfof whic the'following is aspecification.- 1

My invention relates to acetylene gas'a'pparatus, and particularly to the means for generating acetylene gas. n 'One 'obgect of my inventionis the provi-' sion of a verysimple generating device par ticularly adapted either for lighting'pun,

poses or for .use'-Iwith an oxo-acetylene weldingtorch, I i 1 A furtherob ect of the invention is to I provide an acetylene gas generatorso constructedthat a constant pressureof gas is carbid remains the carbid container 1 A further object in this COIIIIGCtlOD'IS to v provide fan automatic control of the gas generator whereby whenthe pressure falls below a certain point the, generation'ofthe gas will immediatelyfconnnence and when the pressure rises beyond a certain point this generation will cease.

Afurther obJect is to" improve and simplify the details of construction and to provide means whereby fresh .carbld may be thegenerator' and the readily placed within residue removed. f v 7 Other objects will' appear in the course of the following description.

" Figure 1 is a vertical sectionalview of my 7 improved generaton. Fig. 2 is a perspective detail View of the carbid holder opened up. Fig. 3 is a perspective view of the carbid basket. Fig. 4 is a perspective view of one of the apron sections. Fig. 5 is an enlarged section of the valve 11. and valve casing.

Corresponding and like parts are re ferred to in the following description and. indicated in all theviews 'ofr the accom panying drawingsjby the same reference characters. I

My improved generator consists of two chambers A and B, each of these chambers consisting of a section of pipe, each section being six inches in diameter and two feet long. The pipe 2 of the section A'is closed at top and bottom by caps 3, the upper cap being provided with a pressure gagefl of any suitable construction. A Water pipe 5 ACETYLENE-GASGENERATOR.

controlled." The chamber B likewise consists of a section, of pipe designated 2? closed at 1ts lower end by means of a screw-.

the pipe section 2? to which'annulus is bolt led a plate 8 provided with a safety valve and with a pressure gage. The pipe sec- "tions' A and. Bare connected at the bottom by a pipe line 9 including a union, a globe valveIO- and acheck-valve 11, which check-x valve has a. smallhole dr illed throughjit Specification of Letters Patent. A Patnted A 13 1915 Application filed March 3, 1914. Serial No. 822,188. s P

enters the chamber A'iadjacent its. upperfi', end, this water pipe being providedwitha valve whereby theentranc'e'of water may be whereby to'let' the water rise slowly, in the chamber B so as to prevent too much of the carbid carried in said chamber from being.

dampened at one time, andthus preventing ever,'permits water to escape quickly from the chamber B when thefpressure in this chamber has increased 1 beyond the said v I s l an over pressure' The check-valve, how- Disposed within the chamber -l? A bid container; --This as illustrated is circular 111' section and made in two lateral' halves, as shown clearly in Fig. 2," these half sections being'hinged'to each other. One of the half, sections is designated 12 and theother 12 ,"t he hinges being desig-j,

nated 13." The. lower portion ofthese sec% tions 12 and 12" are perforated asat14= for the inlet of water. The sections 12 and 12 when closed form a cylindrical hollow body less in diameter than the diameter of the pipe's'ection' 2 and adapted to rest upon the. bottom cap 3?, as shown clearly in, Fig. 1.5 Mounted upon the 's'ectionsf12 and 12 are the brackets 151.for supporting the carbid 1 basket'and disposed b'elowtheSe brackets is an apron made in two sections, each; of. these sections .bein'g designated 16. Each section is constructed as shown in Fig 4,

of a semi-circularplate' flanged at its upper end as at 17 this flange being adapted to be riveted to the sections 12 and 12 The body portion of each apron section extends down parallel to the sections 12 and 12*,

and these aprons are of suflicient extent to I protect the perforations 14 and preventflthe residue of 'th'e'carbid holder from plugging up or cloggingthe holes or perforationsl l'.

The apron permits the used carbid to drop from which it may be removed when the down into the bottom of the carbid holder generator is cleaned.

Supported upon the brackets 15 is a carbid basket 18 illustrated in Fig. 3. This basket embodies a perforated or reticulated side wall, a perforated or reticulated bottom and a perforated or reticulated centrally disposed screen which is designated 19 extending up through the middle of the basket, the upper end of the basket being open. The basket has a diameter less than the diameter of the carbid holder formed of the sections 12 and 12 so that water may pass freely up on the outside of the basket as well as up I through the perforated or reticulated tube.

19 and through the bottom of the basket.

The operation of my invention is as follows :-In starting to generate gas, carbid is placed in the top part of the container, that is, within the basket 18. The carbid basket is than placed within the holder formed of the sections 12 and 12 and the holder and basket are inserted in the generating chamber B. The top cap, 6 is then screwed down. The globe valve 10 in the pipe line is then opened and water which has previously been allowed to enter the chamber A is allowed to flow into chamber B until water reaches the level of the test cock 20- therein. The globe valve is then closed and the section A is filled with water up to the pipe 5 which is connected to a'street L, or to any other suitable source of supply. Compressed air is then forced into the upper end of the chamber A, above the water by means of any suitable air pumping apparatus which may be connected to a nipple 21 projecting from the chamber 'A. hen the globe valve 10 is now opened the water in the generating chamber B will be forced upward by the pressure behind the water in the chamber A until the water in the chamber B reaches the carbid, whereupon gas is generated. This increases the pressure in the upper portion of the chamber B and forces the water away from the carbid, the check-valve 11 readily permitting the return flow of water. The return flow of water will, of course, further compress the air in the upper portion of the chamber A. When the pressure in the generator B becomes reduced then the water again rises into contact with the carbid in the basket. It will, of course, be noted that to insure against the possibility of gas getting into the chamber A, the chamber B should be filled with a column of water equal to or somewhat greater than the area of the column in the upper portion of the chamber A, which is filled with air.

It is to be understood that I may dispense with the chamber A in some cases and connect the pipe 9 directly with a source of water under pressure. This will operate in much the same manner. When the pressure pressure of gas in the upper portion of the 4 chamber increases, the column of water in the chamber B will be forced down against the pressure in the pipe 9. r

The check valve 11 operates in the following manner: It is so placed that the wa a ter passes slowly through the perforation toward the carbid chamber when the pressure of the compressed air in the water chamber is greater than the pressure of gas in the generating chamber, but when the pressure of gas in the generating chamber becomes greater than the air pressure in the Water chamber and the flow of Water is toward the water chamber, the checkvalve opens and allows the water to escape rapidly from the generating chamber While the check valve adds to the easiness with which the ma chine may be started. It is to be understood that I do not wish to be limited to the use of this check valve as in many cases it may be removed.

I have found in practical'operation that the pressure in the chambers A and B remains practically constant with my apparatus until the carbid is all used. It will be seen that the control of this apparatus is automatic and that the device is so simple as not to easily get out of repair or become inoperative.

Having thus described the invention what is claimed as new is 1. 7 An acetylene gas generator including a generating chamber, means for supporting carbid in the upper-portion thereof, a water pipe entering the lower portion of the generating chamber, a check-valve in said pipe, said valve opening from the generating chamber and being provided witha perforation, saidv pipe being connected to a source of water under pressure, the check-valve permitting back flow of water when the gas pressure in the generating chamber is greater than the water pressure.

2. An acetylene gas generator including a tubular generating chamber closed at its opposite ends by caps, one of said caps being removable, a carbid holder disposed within the generating chamber and less in diameter than said chamber, said holder being formed of oppositely disposed semi-cylindrical sections pipe at its lower end, a cap closing the up.- per end of the chamber, a carbidholder removably mounted within the chamber and consisting of hinged sections,'the lower portion of the holderbeing perforated for the admission of water, a'sectionalapron mounted in the interior of the holder and extend- 7 ing downward over said perforations but spaced from thewall of the holder, and a removable carbid basket disposed in the upper portion of the chamber. 7 I 4:. An acetlyene gas generator including a tubular generating chamber closed at its opposite ends by caps, one of the caps being removable, a carbid holder disposedwithin the generating chamber and less in diameterthan said chamber, said holder being formed of oppositely disposed semi-cylin- 'drical sections hinged to each other, the bota pipe connecting the lower ends of the two chambers, a check-valve in said pipe opening from the generating chamber and said check-valve being perforated, a carbid Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

holder disposed in the upper portion of the generatingv chamber, and means whereby air may be compressed into the upper portion of the water chamber.

6. A11 acetylene gas generator including .7:

a generating chamber, formed of a section T '1 of pipe, closed atone end and having a ref: movable cap at the other end, a water chamber formed of a sectionjfof pipe closed at opposite ends, a pipe connecting the, twochambers at their lower ends, a check-valve v in said pipe opening from=the generating chamber and being perforated, a globe valve, in the pipe, means in the upperend offthe water chamber. whereby air mayv be compressed therein, means' for admitting water 1 to the water chamber, a removable carbid holder disposed within the generating chamber and comprising a cylindrical member, 7 v

formed in opposed hinged sections, the

lower end of said'holderbeing perforated for the admission of water, an apron covering said perforations and spaced from the wall of the holder, brackets supported'with in the holder, and a removable carbid basket mounted upon said brackets.

' In testimony. whereof I affixmy signature in presenceof two witnesses.

GEORGE M. ELLIS.

Witnesses v a -J. W. Knenrcn, FRED O. HAMILQ [its] Washington, D. G. 

